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Finding the Fourth Proportional to 45,856.40, 64,315.60 and 45,856.40

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Solution

The fourth proportional to 45,856.40, 64,315.60 and 45,856.40 is: 64,315.60

Step by Step Solution

  1. Step 1: Write the proportion equation
    45,856.40 : 64,315.60 = 45,856.40 : x
  2. Step 2: Convert to fraction form
    45,856.40/64,315.60 = 45,856.40/x
  3. Step 3: Cross multiply
    45,856.40x = 64,315.60 × 45,856.40
  4. Step 4: Simplify right side
    45,856.40x = 2,949,281,879.84
  5. Step 5: Solve for x
    x = 2,949,281,879.84/45,856.40
  6. Step 6: Final answer
    x = 64,315.60

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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.