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Finding the Fourth Proportional to 60,248.40, 90,364.88 and 15,878.64

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Solution

The fourth proportional to 60,248.40, 90,364.88 and 15,878.64 is: 23,815.93

Step by Step Solution

  1. Step 1: Write the proportion equation
    60,248.40 : 90,364.88 = 15,878.64 : x
  2. Step 2: Convert to fraction form
    60,248.40/90,364.88 = 15,878.64/x
  3. Step 3: Cross multiply
    60,248.40x = 90,364.88 × 15,878.64
  4. Step 4: Simplify right side
    60,248.40x = 1,434,871,398.16
  5. Step 5: Solve for x
    x = 1,434,871,398.16/60,248.40
  6. Step 6: Final answer
    x = 23,815.93

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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.