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Finding the Fourth Proportional to 17,386,421.55, 24,391,378.65 and 17,386,421.55

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Solution

The fourth proportional to 17,386,421.55, 24,391,378.65 and 17,386,421.55 is: 24,391,378.65

Step by Step Solution

  1. Step 1: Write the proportion equation
    17,386,421.55 : 24,391,378.65 = 17,386,421.55 : x
  2. Step 2: Convert to fraction form
    17,386,421.55/24,391,378.65 = 17,386,421.55/x
  3. Step 3: Cross multiply
    17,386,421.55x = 24,391,378.65 × 17,386,421.55
  4. Step 4: Simplify right side
    17,386,421.55x = 424,078,791,394,569.88
  5. Step 5: Solve for x
    x = 424,078,791,394,569.88/17,386,421.55
  6. Step 6: Final answer
    x = 24,391,378.65

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1.5x scale

Why These Related Problems?

These problems maintain the same ratio (1.40) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.