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Finding the Fourth Proportional to 61,684.40, 92,307.90 and 42,001.40

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Solution

The fourth proportional to 61,684.40, 92,307.90 and 42,001.40 is: 62,853.19

Step by Step Solution

  1. Step 1: Write the proportion equation
    61,684.40 : 92,307.90 = 42,001.40 : x
  2. Step 2: Convert to fraction form
    61,684.40/92,307.90 = 42,001.40/x
  3. Step 3: Cross multiply
    61,684.40x = 92,307.90 × 42,001.40
  4. Step 4: Simplify right side
    61,684.40x = 3,877,061,031.06
  5. Step 5: Solve for x
    x = 3,877,061,031.06/61,684.40
  6. Step 6: Final answer
    x = 62,853.19

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1.5x scale

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.