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Finding the Fourth Proportional to 66,869.40, 93,442.20 and 66,869.40

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Solution

The fourth proportional to 66,869.40, 93,442.20 and 66,869.40 is: 93,442.20

Step by Step Solution

  1. Step 1: Write the proportion equation
    66,869.40 : 93,442.20 = 66,869.40 : x
  2. Step 2: Convert to fraction form
    66,869.40/93,442.20 = 66,869.40/x
  3. Step 3: Cross multiply
    66,869.40x = 93,442.20 × 66,869.40
  4. Step 4: Simplify right side
    66,869.40x = 6,248,423,848.68
  5. Step 5: Solve for x
    x = 6,248,423,848.68/66,869.40
  6. Step 6: Final answer
    x = 93,442.20

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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.