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Finding the Fourth Proportional to 17,771,985.55, 26,657,978.33 and 16,386,302.35

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Solution

The fourth proportional to 17,771,985.55, 26,657,978.33 and 16,386,302.35 is: 24,579,453.53

Step by Step Solution

  1. Step 1: Write the proportion equation
    17,771,985.55 : 26,657,978.33 = 16,386,302.35 : x
  2. Step 2: Convert to fraction form
    17,771,985.55/26,657,978.33 = 16,386,302.35/x
  3. Step 3: Cross multiply
    17,771,985.55x = 26,657,978.33 × 16,386,302.35
  4. Step 4: Simplify right side
    17,771,985.55x = 436,825,692,955,128.06
  5. Step 5: Solve for x
    x = 436,825,692,955,128.06/17,771,985.55
  6. Step 6: Final answer
    x = 24,579,453.53

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Why These Related Problems?

These problems maintain the same ratio (1.50) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.