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Finding the Fourth Proportional to 52,328.64, 78,492.96 and 15,392.64

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Solution

The fourth proportional to 52,328.64, 78,492.96 and 15,392.64 is: 23,088.96

Step by Step Solution

  1. Step 1: Write the proportion equation
    52,328.64 : 78,492.96 = 15,392.64 : x
  2. Step 2: Convert to fraction form
    52,328.64/78,492.96 = 15,392.64/x
  3. Step 3: Cross multiply
    52,328.64x = 78,492.96 × 15,392.64
  4. Step 4: Simplify right side
    52,328.64x = 1,208,213,875.81
  5. Step 5: Solve for x
    x = 1,208,213,875.81/52,328.64
  6. Step 6: Final answer
    x = 23,088.96

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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.