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Finding the Fourth Proportional to 64,920.64, 97,365.60 and 29,838.40

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Solution

The fourth proportional to 64,920.64, 97,365.60 and 29,838.40 is: 44,750.54

Step by Step Solution

  1. Step 1: Write the proportion equation
    64,920.64 : 97,365.60 = 29,838.40 : x
  2. Step 2: Convert to fraction form
    64,920.64/97,365.60 = 29,838.40/x
  3. Step 3: Cross multiply
    64,920.64x = 97,365.60 × 29,838.40
  4. Step 4: Simplify right side
    64,920.64x = 2,905,233,719.04
  5. Step 5: Solve for x
    x = 2,905,233,719.04/64,920.64
  6. Step 6: Final answer
    x = 44,750.54

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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.