Home / 47,289.60-70,934.40-39,686.40

Finding the Fourth Proportional to 47,289.60, 70,934.40 and 39,686.40

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Solution

The fourth proportional to 47,289.60, 70,934.40 and 39,686.40 is: 59,529.60

Step by Step Solution

  1. Step 1: Write the proportion equation
    47,289.60 : 70,934.40 = 39,686.40 : x
  2. Step 2: Convert to fraction form
    47,289.60/70,934.40 = 39,686.40/x
  3. Step 3: Cross multiply
    47,289.60x = 70,934.40 × 39,686.40
  4. Step 4: Simplify right side
    47,289.60x = 2,815,130,972.16
  5. Step 5: Solve for x
    x = 2,815,130,972.16/47,289.60
  6. Step 6: Final answer
    x = 59,529.60

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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.