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Finding the Fourth Proportional to 61,698.14, 92,547.18 and 20,145.14

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Solution

The fourth proportional to 61,698.14, 92,547.18 and 20,145.14 is: 30,217.70

Step by Step Solution

  1. Step 1: Write the proportion equation
    61,698.14 : 92,547.18 = 20,145.14 : x
  2. Step 2: Convert to fraction form
    61,698.14/92,547.18 = 20,145.14/x
  3. Step 3: Cross multiply
    61,698.14x = 92,547.18 × 20,145.14
  4. Step 4: Simplify right side
    61,698.14x = 1,864,375,897.71
  5. Step 5: Solve for x
    x = 1,864,375,897.71/61,698.14
  6. Step 6: Final answer
    x = 30,217.70

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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.